Mu'adha asked 'A'isha (Allah be pleased with her) how many rak'ahs Allah's Messenger (ﷺ) prayed at the forenoon prayer. She replied:Four rak'ahs, but sometimes more as he pleased

A hadith like this has been reported by the same chain of transmitters, but with this alteration that the transmitter said:" As Allah pleased

Mua'ada 'Adawiyya reported 'A'isha as saying:The Messenger of Allah (ﷺ) used to observe four rak'ahs in the forenoon prayer and he sometimes observed more as Allah pleased

A hadith like this has been narrated by Qatada with the same chain of transmitters